Hello!
When doing Sine, Cosine and Tangent the sides of the triangle tell you what to do
The hypotenuse is H
The bottom side is A
The Straight up and down side is O
For Sine you do O / H
For Cosine you do A / H
For Tangent you do O/ A
Put in the values you Sine
Sin A = 5/ 13
Put in the values for Cosine
Cos A = 12/ 13
The answer is A) Sin A = 5/ 13, cos A = 12/ 13
Hope this helps!
Answer:

Step-by-step explanation:
To solve this problem you must know the formula of subtraction of angles for the function cosx.
The formula is:

We can write 30° as: 45° - 15°
Then:

Using the formula for subtraction of angles we have:

Notice that we have achieved the expression shown in the statement
Finally:

Answer:
Step-by-step explanation:
the diameter is the measurement that is all the way across the circle which is given to you so the diameter is 7cm. To find the radius it is half the way across the circle so it is half the diameter so in this case the radius would be 3.5cm
Answer:
48/8=6 bags of chocolate chip cookies.
And 64/8=8 bags of vanilla wafer cookies.
8 bags.
Step-by-step explanation:
Linda is having a bake sale:
48 chocolate chip cookies and 64 vanilla wafer cookies to put in bags
She can fill the bag with same number of cookies and the same number of wafers in each bag
And condition is no wafers or cookies left over.
So, we will find the greatest common factor of 48 and 64 which is 8
Hence, she can fill 8 bags
And 48/8=6 bags of chocolate chip cookies.
And 64/8=8 bags of vanilla wafer cookies.